20100518

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{1723}}^1$

素因数の和:2051

約数の個数: 16

約数和(自身を含む): 31859520

約数和(自身を除く): 11759002

約数列:

[1, 2, 19, 38, 307, 614, 1723, 3446, 5833, 11666, 32737, 65474, 528961, 1057922, 10050259, 20100518]

約数ペア:

[(1, 20100518), (2, 10050259), (19, 1057922), (38, 528961), (307, 65474), (614, 32737), (1723, 11666), (3446, 5833)]